Cleaning and liquid contact with solids – Apparatus – Operating or controlling device engaged and moved by work or...
Patent
1991-12-06
1994-01-11
Stinson, Frankie L.
Cleaning and liquid contact with solids
Apparatus
Operating or controlling device engaged and moved by work or...
134 62, 134166R, 134182, 134198, 239121, B08B 908
Patent
active
052772071
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to devices for treating bottles and intended to form part of a bottle treatment machine having movable treatment devices mounted, for example, on a roundabout.
The present invention also relates to a bottle treatment machine of this kind.
A machine of this type is known in which each device comprises a clamp gripping the bottle, for example by its neck, in order to cause it to pivot substantially through 180.degree. until the neck of the bottle is directed downward above a nozzle for injecting a treatment product. The product projected into the bottle, after having struck against and bathed the inside wall of the bottle, falls into a tank formed under all the devices. From this tank the liquid is either conveyed, for example, to the drain or conveyed into a recycling circuit. When a machine of this kind is put into operation, the first injections, which are made while the bottles have not yet arrived, serve to clean the injection circuit before the actual treatment of the bottles.
In the following it will be said that the bottle is in the "upright" position when its neck is directed upward and that it is "inverted" when its neck is directed downward.
The bottle treatment operations must comply with stringent conditions of hygiene. From this point of view the presence of a recovery tank under the machine is scarcely satisfactory. This tank of large dimensions is poorly protected against soiling. It therefore gives rise to a not very salubrious environment around the machine. In addition, its soiling entails direct disadvantages in cases where the liquid has to be recycled. During the cleaning preceding the actual commencement of the operation, the liquid is projected upward in the absence of bottles and falls back in an uncontrolled manner, not necessarily into the tank. The liquid which does fall back into the tank may previously have been in contact with the outside of the machine and have picked up dirt from it.
The aim of the invention is therefore to provide a bottle treatment device and a bottle treatment machine, in which the guiding of the injected fluid is optimized in respect of hygiene and percentage of product recovered after each injection.
According to a first aspect of the invention, the device for treating bottles in the inverted position, comprising a clamp for gripping the bottle and causing it to pivot substantially through 180.degree. about a horizontal axis, a nozzle for injecting fluid into the inverted bottle, and a receptacle for collecting the fluid falling back from the bottle, is characterized in that the receptacle is an individual receptacle and in that the clamp gripping the bottles is carried by at least one pivoting arm articulated to one side of the individual receptacle.
The receptacle can thus be situated just below the neck of the bottle when the latter is in the inverted position, the clamp causing the bottle to pivot in order to cause it to pass from a region situated below the receptacle when the bottle is in the upright position to a region situated just above the receptacle when the bottle is in the inverted position.
The receptacle can be of small size, thus limiting the area of liquid exposed to soiling. The effects of soiling can be further reduced by partly closing the top of the receptacle except at at least one precise place above which the neck of the bottle in the inverted position is situated. The reduced free area of liquid in each receptacle limits losses by evaporation.
According to a second aspect of the invention, the device for treating bottles in the inverted position, comprising a clamp for gripping the bottle and causing it to pivot substantially through 180.degree. about a substantially horizontal axis, a nozzle for injecting fluid into the inverted bottle, and a receptacle for collecting the fluid falling back from the bottle, is characterized in that the receptacle is an individual receptacle, and in that the device comprises, above the fluid injection nozzle, a cap which is movably mounted so as to be moved away by
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